Disclosed herein is a partition wall assembly for a stove. The partition wall assembly for a stove includes a plurality of partition walls (100, 100a, 100b, 100c). Each of the partition walls includes: an outer panel (110) having first air intake holes (111a) formed at a lower portion thereof so that first air is induced; an inner panel (120) coupled to the inside of the outer panel (110), and having an air moving space (119) formed between the outer panel (110) and the inner panel (120) so that the first air induced through the first air intake holes (111a) moves in the air moving space (119) while temperature of the first air is elevated, and second air outlets (121b) formed at an upper portion thereof to discharge the second air with the elevated temperature toward fuel; and a pair of side coupling members (130) disposed at both sides of the outer panel (110) to couple the outer panel (110) and the inner panel (120) with each other. The inner panel (120) includes: an inner panel body (121) curved to have a predetermined curvature in a height direction; a lower inside coupling plate (122) extending from a lower portion of the inner panel body (121) to a predetermined area and coupled with the outer panel (110); and an upper inside coupling plate (123) extending from an upper portion of the inner panel body (121) to a predetermined area and coupled with the outer panel (110).

A fire pit includes a main body having a double outer wall that defines an air inlet. An accessory support post is received by the main body within the double outer wall. A locking projection and locking flange cooperate to lock the vertical and rotational position of the support post with respect to the main body of the fire pit. A floating fire box is supported from above by a grilling flange that allows the fire box to move down when heated. The accessory post can be used with a post holder next to a camp fire. The post holder and accessory post use of the locking projection and locking flange to secure the accessory post with respect to the holder. A grill having an outer body member protects the user's finger from engaging sharp edges of an expanded metal grill.

A combustion assembly housing contains primary and secondary combustion chambers and an ash receptacle. The primary combustion chamber has primary and exhaust grates. Fuel pellets fall in downward onto the primary grate; intake air flows in upward through the primary grate; exhaust gas flows out rearward through the exhaust grate. The primary grate supports unburned fuel pellets and permits partially burned pellets to fall through. Multiple vertical passages through the primary grate are each deeper than they are wide. The secondary combustion chamber has a secondary grate. Partially burned pellets fall in downward onto the secondary grate; intake air flows in rearward, through the secondary grate, and out upward into the primary combustion chamber. The secondary grate supports partially burned pellets and permits ash to fall through downward into the ash receptacle. Intake air flows rearward into the ash receptacle and upward into the secondary combustion chamber.

A table (1) comprises a table top (4), a heating appliance (3), and a heating appliance holder (2) holding the heating appliance (3). The heating appliance holder (2) comprises a holder main body (7) and a table top holder (8) for holding the table top (4), the table top holder (8) being spaced apart from the holder main body (7) by at least one gap (20).

A biomass pellet combustion system includes a primary burn chamber, a coal burn chamber, and a gas burn chamber. The primary burn chamber is configured to receive pellets from a drop tube of the biomass pellet combustion system. The coal burn chamber is configured to receive coals from the primary burn chamber. The gas burn chamber is configured to receive combustible gases from both the primary burn chamber and the coal burn chamber, wherein a secondary combustion process converts secondary combustion air and the combustible gases into exhaust gases in the gas burn chamber.

Embodiments of the inventive concept provide a high-capacity, sparkless, mobile, double-insulated wood pellet burner unit. The wood pellet burner unit is safely operated on a wood floor or deck. The wood pellet burner unit produces a large radiant flame that enhances the surrounding area, free from dangerous sparks and smoke. The ash and coals from the fire are enclosed within a double-insulated housing. A wind break radiant heat reflector protects the flame from being distorted, enhances the flame so that it remains in a substantially upright column, and reflects some of the heat outwardly toward the users. Casters disposed on the bottom of the wood pellet burner permit easy and convenient movement of the unit. The wood pellet burner unit disclosed herein produces a larger and fuller flame than a pure gas fire pit based on a balanced multi-directional flow of heated combustion air flow through the unit.

A fire pit includes an engine having at least one wall defining an inner chamber. At least one primary air aperture is defined through the inner chamber wall at a first, lower level, and at least one secondary air aperture is defined through the inner chamber wall at a second, upper level. A fuel grate is supported within the inner chamber at a level between the lower level and the upper level.

A fire pit includes a main body having a double outer wall that defines an air inlet. An accessory support post is received by the main body within the double outer wall. A locking projection and locking flange cooperate to lock the vertical and rotational position of the support post with respect to the main body of the fire pit. A floating fire box is supported from above by a grilling flange that allows the fire box to move down when heated. The accessory post can be used with a post holder next to a camp fire. The post holder and accessory post use of the locking projection and locking flange to secure the accessory post with respect to the holder. A grill having an outer body member protects the user's finger from engaging sharp edges of an expanded metal grill.

The invention is a novel Top-Lit-Updraft cook stove with internal forced primary and secondary air, designed to burn biomass. The cook stove is specifically designed to cleanly burn biomass. The stoves design innovations include a cylinder-within-cylinder design to provide heated, forced secondary to the burner area right below the burner. The burner design addresses limitations in previous cookstove burner design by implementing a bluff body design to direct syngas to the secondary air jets, improving mixing and combustion of volatile gases.

A solid fuel combustion device includes: a fuel supply device including a firewood feed pipe or another fuel supplier; a primary combustion chamber coupled to the fuel supply device; a secondary combustion chamber including a wall formed of a fireproof material and having a structure in which a space is formed at a side of the combustion gas outlet of the primary combustion chamber to induce primary combustion gas to be secondarily expanded and combusted; and an air supply system including at least one air supply device in an entire combustion path formed in the primary combustion chamber and the secondary combustion chamber.